William Piers may refer to:
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William Piers (bishop)
William Piers (Pierse, Pierce; –1670) was Vice-Chancellor of Oxford University from 1621 to 1624, Bishop of Peterborough from 1630 to 1632 and Bishop of Bath and Wells from 1632 until the abolition of episcopacy in 1646, then again from t ...
, vice-chancellor of Oxford University, bishop of Peterborough, and of Bath and Wells
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William Piers (constable), English constable in Ireland
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William Piers (priest), English Anglican priest
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William Piers (MP), British Whig politician
{{hndis, Piers, William